<template>
    <el-form :inline="true">
      <el-form-item>
        <selector placeholder="请选择题⽬难度" style="width: 200px;" v-model="params.difficulty"></selector>
      </el-form-item>
      <el-form-item>
        <el-input placeholder="请您输⼊要搜索的题⽬标题" v-model="params.title"/>
      </el-form-item>
      <el-form-item>
        <el-button plain @click="onSearch">搜索</el-button>
        <el-button plain type="info" @click="reset">重置</el-button>
        <el-button plain type="primary" :icon="Plus" @click="onAddQuestion">添加题⽬</el-button>
      </el-form-item>
    </el-form>
    <el-table height="526px" :data="questionList">
      <el-table-column prop="questionId" width="180px" label="题⽬id" />
      <el-table-column prop="title" label="题⽬标题" />
      <el-table-column prop="difficulty" label="题⽬难度" width="90px">
        <template #default="{ row }">
          <div v-if="row.difficulty === 1" style="color:#3EC8FF;">简单</div>
          <div v-if="row.difficulty === 2" style="color:#FE7909;">中等</div>
          <div v-if="row.difficulty === 3" style="color:#FD4C40;">困难</div>
        </template>
      </el-table-column>
      <el-table-column prop="createName" label="创建⼈" width="140px" />
      <el-table-column prop="createTime" label="创建时间" width="180px" />
      <el-table-column label="操作" width="100px" fixed="right">
        <template #default="{ row }">
          <el-button type="text" @click="onEdit(row.questionId)">编辑</el-button>
          <el-button type="text" class="red" @click="onDelete(row.questionId)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <el-pagination layout="total, sizes, prev, pager, next, jumper" :total="total" size="small"
      v-model:current-page="params.pageNum" v-model:page-size="params.pageSize"
      :page-sizes="[1,5,10,20,50]" @size-change="handleSizeChange" @current-change="handleCurrentChange" />
      <QuestionDrawer ref="questionDrawerRef" @success="onSuccess"></QuestionDrawer>
  </template>

<script setup>
import { Plus, Warning } from "@element-plus/icons-vue"
import Selector from "@/components/QuestionSelector.vue"
import { delQuestionService, getQuestionListService } from "@/apis/question"
import { reactive } from "vue"
import { ref } from "vue"
import QuestionDrawer from "@/components/QuestionDrawer.vue"
import { ElMessage, ElMessageBox } from "element-plus"

const questionList = ref([])
const params = reactive({
  difficulty: '',
  title: '',
  pageNum: 1,
  pageSize: 10
})
const total = ref(0)

async function getQuestionList() {
  const result = await getQuestionListService(params)
  questionList.value = result.rows
  total.value = result.total
}

getQuestionList()

function handleSizeChange(newSize) {
  // params.pageSize = newSize
  params.pageNum = 1
  getQuestionList()
}

function handleCurrentChange(newNum) {
  // params.pageNum = newNum
  getQuestionList()
}

function onSearch() {
  console.log(params)
  params.pageNum = 1
  getQuestionList()
}

function reset() {
  params.difficulty = '';
  params.title = '';
  params.pageNum = 1;
  params.pageSize = 10;
  getQuestionList()
}

const questionDrawerRef = ref()

function onAddQuestion() {
  questionDrawerRef.value.open()
}

function onSuccess(service) {
  if (service == 'add') {
    params.pageNum = 1
  }
  getQuestionList()
}

function onEdit(questionId) {
  questionDrawerRef.value.open(questionId)
}

async function onDelete(questionId) {
  await ElMessageBox.confirm(
    '您确认要删除该题目吗',
    'Warning',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
  ElMessage({
      type: 'success',
      message: '删除成功'
    })
    confirmDelete(questionId)
  .catch(() => {
    ElMessage({
      type: 'info',
      message: '取消删除'
    })
  })
}

async function confirmDelete(questionId) {
  await delQuestionService(questionId)
  params.pageNum = 1
  getQuestionList()
}

</script>